“Keep violence in the mind where it belongs.”
Barefoot in the Head (1969)
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Brian W. Aldiss 116
British science fiction author 1925–2017Related quotes

“The world belongs to the enthusiast who keeps cool.”
Book I: The Suburb, Ch. XIII
Casuals of the Sea (1916)

“Where people are free, political violence is minimal.”
Source: The Blue Book of Freedom: Ending Famine, Poverty, Democide, and War (2007), p. 13

As quoted in "Dutch cabinet intensifies security after Paris attacks" http://news.xinhuanet.com/english/2015-11/14/c_134816626.htm, Xinhua News Agency (14 November 2015)
2010s

Further response to the above question
1950s, Freedom From the Self (1955)

“In a world where language and naming are power, silence is oppression, is violence.”
Source: On Lies, Secrets, and Silence: Selected Prose, 1966-1978

“In this world where selfishness and violence make noise, we value love.”
Original: (it) In questo mondo dove egoismo e violenza fanno rumore, diamo valore all'amore.
Source: prevale.net

Source: Kinski Uncut : The Autobiography of Klaus Kinski (1996), p. 2